Physiological Manipulation of the Source Sink Relation for Increasing Yield in Cotton (Gossypium Hirsutum L.) (Record no. 70802)

MARC details
000 -LEADER
fixed length control field 02617nam a2200217 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250207125453.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250207b |||||||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Transcribing agency Dharwad
041 ## - LANGUAGE CODE
Language code English
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 581.1
Author Label KOL
100 ## - MAIN ENTRY--PERSONAL NAME
Name of Author Koloor Siddanagouda R.
245 ## - TITLE STATEMENT
Title Physiological Manipulation of the Source Sink Relation for Increasing Yield in Cotton (Gossypium Hirsutum L.)
250 ## - EDITION STATEMENT
Edition Statement M.Sc. (Agri)
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of Publisher Dharwad
Name of Publisher University of Agricultural Sciences
Publication Year 2024
300 ## - PHYSICAL DESCRIPTION
Book Pages 115
Book Size 32 Cms
520 ## - SUMMARY, ETC.
Abstract. ABSTRACT<br/><br/> The field experiment was conducted during kharif 2023 to study physiological manipulation of the source sink relation for increasing yield in cotton (Gossypium hirsutum L.) at the Agricultural Research Station (ARS), Dharwad. The experiment consisted of ten treatments and three replications laid out in RBD. The treatments consist of three growth retardants (mepiquat chloride, cycocel and maleic hydrazide) at different concentration along with detopping. The morpho-physiological traits viz., decreased plant height with increased number of branches and total dry matter significantly due to the foliar spray of maleic hydrazide @ 30 ppm after 80 DAS and cycocel @ 60 ppm after 80 DAS along with significant increase in the growth parameters like AGR, CGR, RGR, NAR, SLW and LAI compared to control. Relative water content (RWC) and SPAD values varied across foliar spray of mepiquat chloride @ 45 ppm at square initiation along with detopping showing highest RWC and chlorophyll content, respectively, indicating enhanced metabolic activity and photosynthetic potential. However, the timely application of maleic hydrazide and cycocel at specified rates had a synergistic effect on cotton yield, boll production and boll weight, leading to improved overall crop performance. The higher seed cotton yield and bolls per plant were recorded in foliar spray of maleic hydrazide @ 30 ppm after 80 DAS and cycocel @ 60 ppm after 80 DAS. The maximum seed cotton yield was mainly attributed to its close association with yield components viz., boll number, boll weight and harvest index (HI). The results showed that the application of maleic hydrazide, cycocel and mepiquat chloride significantly reduced plant height, while detopping had a impact on RWC. Thus, it was concluded that, application of PGRs and detopping can be an effective strategy for improving cotton yield and productivity by manipulating source sink relations.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Subject Crop Physiology
700 ## - ADDED ENTRY--PERSONAL NAME
2nd Author, 3rd Author Mummigatti U. V.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha Item type THESIS
Edition M.Sc. (Agri)
Classification part 581.1
Call number prefix KOL
Suppress in OPAC No
942 ## - ADDED ENTRY ELEMENTS (KOHA)
-- 581_100000000000000
999 ## -
-- 70802
-- 70802
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Home library Current library Date acquired Total checkouts Full call number Barcode Date last seen Copy number Price effective from Koha item type
    Dewey Decimal Classification     University of Agricultural Sciences, Dharwad University of Agricultural Sciences, Dharwad 28/11/2024   581.1/KOL T14037 07/02/2025 1 07/02/2025 THESIS